Microsoft Releases KB5102117 to Improve Windows 11 Recovery

Microsoft has released the KB5102117 update for Windows 11 versions 24H2 and 25H2, according to Neowin. The Dynamic Update focuses exclusively on improving the Windows Recovery Environment.

Unlike broader Windows updates, KB5102117 does not introduce new features or make changes to the main operating system. Microsoft designed the package to improve the reliability of recovery tools that users may need when Windows fails to start normally.

KB5102117 updates Windows Recovery Environment

After installing the update, the Windows Recovery Environment version should change to 10.0.26100.8971.

WinRE gives users access to troubleshooting and recovery options outside the standard Windows desktop. These tools can help repair startup problems, restore the system, uninstall problematic updates, access advanced startup settings, or reset a device.

Microsoft classifies KB5102117 as a Safe OS Dynamic Update because it refreshes the files used by the recovery environment.

How Windows Dynamic Updates work

Dynamic Updates improve installation, upgrade, and recovery components before or during a Windows deployment. Microsoft uses several types of packages for different parts of the process.

Safe OS Dynamic Updates refresh WinRE, while Setup Dynamic Updates improve the installation files used before Windows is deployed. Dynamic Updates can also help preserve language packs and Features on Demand during an operating system upgrade.

Microsoft says Windows Update downloads and installs these packages automatically. Most Windows 11 users will not need to search for or install KB5102117 manually.

The company has also released a Windows 11 26H1 Beta Build with fewer monthly restarts and new touchpad controls. A separate Windows 11 Experimental Update introduces smarter search features, Phone Link previews, and other early changes.